Hi Violated! Car computer that is frequently called simply carputer is a small mobile PC integrated into the electronic system of the car and connected to many of its other systems via OBD-II link to gain access to different data. Auto PC you are asking about is a brand of the carputer created by Microsoft and Clarion but it is originally called AutoPC without space between those two words. Carputers are somewhat like smartphones integrated into your car. They have touch screen and many various functions like the ability to call someone, embedded GPS tracking, rear-view camera, and so on. Those functions are using not only the systems of your car but also some wireless frequencies like GPS, Bluetooth or WiFi. As long as GPS might be tracked with ease, WiFi can be tracked too and even Bluetooth frequency may be used to track your car, you need to prevent your AutoPC carputer from tracking your whereabouts, leaving bad guys with no information about your route and places you visit.